STANDARD PARTS 8 917 HEXAGON LOCK NUTS SLOTTED THREAD PART UNIT THREAD PART UNIT SIZE NO PKG SIZE NO GRADE PKG 4 28 125215 286 M 1 5 18 9414579 301 M I 5 I5 24 125224 286 M 1 4 16 3823085 301 M 1 e 24 125339 286 M 1 3 4 20 378137 286 M 5 3 B 16 3863559 286 M 1 8 9 427643 286 II I 1 3 B 24 3829413 286 M 1 8 14 427646 286 M 1 8 24 3978091 301 M 1 1 12 273195 286 M 1 7 5 14 9416580 1 1 14 125411 1 w 20 9418750 301 M 1 I 14 2320986 1 20 121728 286 M 50 I 20 3651486 1 IS 20 272312 1 1 8 12 2311251 286 M 1 w 20 272904 286 M 1 1 12 249127 286 M 1 z 20 125250 286 M 5 1 8 18 3650631 1 z 20 125366 286 M 50 1 4 12 427658 286 M 1 2 20 274428 301 M 1 1 4 18 311961 1 z 20 218522 301 M 1 1 z 12 427668 286 M 1 9 Ie 18 125258 286 M 50 1 12 2214567 1 8 18 125384 286 M 1 In I I NUT ASSEMBLY WITH OUTSIDE TOOTH LOCKWASHER THREAD SIZE PART NO UNIT PKG 10 32 3130804 1 5 1 1 18 271184 1 1974 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 24 8 917 8 917 sp 56